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參數(shù)資料
| 型號： | PCI6611 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DUAL/SINGLE SOCKET CARDBUS AND ULTRAMEDIA CONTROLLER |
| 中文描述： | 雙/單插槽CardBus和UltraMedia控制器 |
| 文件頁數(shù)： | 69/204頁 |
| 文件大小： | 860K |
| 代理商： | PCI6611 |
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321
The PCI6x21/PCI6x11 master is busy. There may be posted data from CardBus to PCI in the
PCI6x21/PCI6x11 controller.
Interrupts are pending.
The CardBus CCLK for the socket has not been stopped by the PCI6x21/PCI6x11 CCLKRUN manager.
PC Card interrogation is in progress.
The PCI6x21/PCI6x11 controller restarts the PCI clock using the CLKRUN protocol under any of the following
conditions:
A 16-bit PC Card IREQ or a CardBus CINT has been asserted by either card.
A CardBus CBWAKE (CSTSCHG) or 16-bit PC Card STSCHG/RI event occurs in the socket.
A CardBus attempts to start the CCLK using CCLKRUN.
A CardBus card arbitrates for the CardBus bus using CREQ.
Bit 1 (KEEPCLK) in the system control register (PCI offset 80h, see Section 4.29) is set.
Data is in any of the FIFOs (receive or transmit).
The master state machine is busy.
There are pending interrupts.
3.8.3
CardBus PC Card Power Management
The PCI6x21/PCI6x11 controller implements its own card power-management engine that can turn off the CCLK to
a socket when there is no activity to the CardBus PC Card. The PCI clock-run protocol is followed on the CardBus
CCLKRUN interface to control this clock management.
3.8.4
16-Bit PC Card Power Management
The COE bit (bit 7) of the ExCA power control register (ExCA offset 02h/42h/802h, see Section 5.3) and PWRDWN
bit (bit 0) of the ExCA global control register (ExCA offset 1Eh/5Eh/81Eh, see Section 5.20) are provided for 16-bit
PC Card power management. The COE bit places the card interface in a high-impedance state to save power. The
power savings when using this feature are minimal. The COE bit resets the PC Card when used, and the PWRDWN
bit does not. Furthermore, the PWRDWN bit is an automatic COE, that is, the PWRDWN performs the COE function
when there is no card activity.
NOTE:
The 16-bit PC Card must implement the proper pullup resistors for the COE and
PWRDWN modes.
3.8.5
Suspend Mode
The SUSPEND signal, provided for backward compatibility, gates the PRST (PCI reset) signal and the GRST (global
reset) signal from the PCI6x21/PCI6x11 controller. Besides gating PRST and GRST, SUSPEND also gates PCLK
inside the PCI6x21/PCI6x11 controller in order to minimize power consumption.
It should also be noted that asynchronous signals, such as card status change interrupts and RI_OUT, can be passed
to the host system without a PCI clock. However, if card status change interrupts are routed over the serial interrupt
stream, then the PCI clock must be restarted in order to pass the interrupt, because neither the internal oscillator nor
an external clock is routed to the serial-interrupt state machine. Figure 313 is a signal diagram of the suspend
function.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| PCI6611GHK | 制造商:Texas Instruments 功能描述:DUAL/SGL SCKT CARDBUS AND ULTRAMEDIA CNTRLR W/ DEDICATED FLA - Trays |
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| PCI6612ZHK | 功能描述:外圍驅(qū)動器與原件 - PCI Integrated single socket RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| PCI6620 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL SOCKET CARDBUS AND SMART CARD CONTROLLER WITH DEDICATED SD/MS-PRO SOCKETS |
| PCI6620GHK | 功能描述:外圍驅(qū)動器與原件 - PCI Integrated 2-Slot PC Card RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
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